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Changeables are a response to the fact that there are competing requirements for many of our types. On the one hand, types should be fully mutable so they can be modified at will. On the other hand, most instances, once they’re put into use, are actually not intended to be modified.
Patrick posted some thoughts on this matter.
What do others think? Is this a sign of language deficiency, or a is this the kind of "real complexity" software engineers really need to handle?
Posted to Software-Eng by Ehud Lamm on 12/24/03; 4:02:05 AM
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Changeable class in Avalon
